fix : 데이터베이스 유니크 중복 예외 처리

backend/core/src/main/java/site/timecapsulearchive/core/domain/auth/service/MessageVerificationService.java

@@ -4,6 +4,7 @@
 import java.security.SecureRandom;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.dao.DataIntegrityViolationException;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import site.timecapsulearchive.core.domain.auth.data.dto.VerificationMessageSendDto;
@@ -13,6 +14,7 @@
 import site.timecapsulearchive.core.domain.member.entity.Member;
 import site.timecapsulearchive.core.domain.member.entity.MemberTemporary;
 import site.timecapsulearchive.core.domain.member.exception.MemberNotFoundException;
+import site.timecapsulearchive.core.domain.member.exception.MemberTagDuplicatedException;
 import site.timecapsulearchive.core.domain.member.repository.MemberRepository;
 import site.timecapsulearchive.core.domain.member.repository.MemberTemporaryRepository;
 import site.timecapsulearchive.core.global.security.encryption.AESEncryptionManager;
@@ -118,7 +120,11 @@ private Long updateToVerifiedMember(final Long memberId, final byte[] plain) {
         final Member verifiedMember = memberTemporary.toMember(hashEncryptionManager.encrypt(plain),
             aesEncryptionManager.encryptWithPrefixIV(plain));
 
-        memberRepository.save(verifiedMember);
+        try {
+            memberRepository.saveAndFlush(verifiedMember);
+        } catch (DataIntegrityViolationException e) {
+            throw new MemberTagDuplicatedException();
+        }
 
         return verifiedMember.getId();
     }

backend/core/src/main/java/site/timecapsulearchive/core/domain/member/entity/Member.java

@@ -89,4 +89,9 @@ private Member(String profileUrl, String nickname, SocialType socialType, String
     public void updateTagLowerCaseSocialType() {
         this.tag = TagGenerator.lowercase(email, socialType);
     }
+
+    public void updateData(String nickname, String tag) {
+        this.nickname = nickname;
+        this.tag = tag;
+    }
 }

backend/core/src/main/java/site/timecapsulearchive/core/domain/member/exception/MemberTagDuplicatedException.java

@@ -0,0 +1,11 @@
+package site.timecapsulearchive.core.domain.member.exception;
+
+import site.timecapsulearchive.core.global.error.ErrorCode;
+import site.timecapsulearchive.core.global.error.exception.BusinessException;
+
+public class MemberTagDuplicatedException extends BusinessException {
+
+    public MemberTagDuplicatedException() {
+        super(ErrorCode.MEMBER_TAG_DUPLICATED_ERROR);
+    }
+}

backend/core/src/main/java/site/timecapsulearchive/core/domain/member/repository/MemberRepository.java

@@ -14,6 +14,8 @@ public interface MemberRepository extends Repository<Member, Long>, MemberQueryR
 
     Member save(Member createMember);
 
+    void saveAndFlush(Member member);
+
     Optional<Member> findMemberById(Long memberId);
 
     @Modifying(clearAutomatically = true)

backend/core/src/main/java/site/timecapsulearchive/core/domain/member/service/MemberService.java

@@ -2,6 +2,7 @@
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.dao.DataIntegrityViolationException;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import site.timecapsulearchive.core.domain.member.data.dto.MemberDetailDto;
@@ -15,6 +16,7 @@
 import site.timecapsulearchive.core.domain.member.entity.SocialType;
 import site.timecapsulearchive.core.domain.member.exception.AlreadyVerifiedException;
 import site.timecapsulearchive.core.domain.member.exception.MemberNotFoundException;
+import site.timecapsulearchive.core.domain.member.exception.MemberTagDuplicatedException;
 import site.timecapsulearchive.core.domain.member.exception.NotVerifiedMemberException;
 import site.timecapsulearchive.core.domain.member.repository.MemberRepository;
 import site.timecapsulearchive.core.domain.member.repository.MemberTemporaryRepository;
@@ -153,12 +155,15 @@ public void updateMemberData(
         final Long memberId,
         final UpdateMemberDataDto updateMemberDataDto
     ) {
-        final int updateMemberData = memberRepository.updateMemberData(memberId,
-            updateMemberDataDto.nickname(), updateMemberDataDto.tag());
+        final Member member = memberRepository.findMemberById(memberId).orElseThrow(MemberNotFoundException::new);
 
-        if (updateMemberData != 1) {
-            throw new MemberNotFoundException();
+        member.updateData(updateMemberDataDto.nickname(), updateMemberDataDto.tag());
+        try {
+            memberRepository.saveAndFlush(member);
+        } catch (DataIntegrityViolationException e) {
+            throw new MemberTagDuplicatedException();
         }
+
     }
 
     @Transactional

backend/core/src/main/java/site/timecapsulearchive/core/global/error/ErrorCode.java

@@ -47,6 +47,8 @@ public enum ErrorCode {
 
     MEMBER_NOT_FOUND_ERROR(404, "MEMBER-003", "사용자 데이터를 찾지 못하였습니다."),
 
+    MEMBER_TAG_DUPLICATED_ERROR(400, "MEMBER-004", "사용자의 태그가 중복 되었습니다."),
+
     //geo
     GEO_TRANSFORMED_ERROR(400, "GEO-001", "좌표 변환에 실패했습니다. 입력이 유효한지 확인해주세요"),
 

backend/core/src/test/java/site/timecapsulearchive/core/domain/auth/service/MessageVerificationServiceTest.java

@@ -102,7 +102,7 @@ class MessageVerificationServiceTest {
             RECEIVER);
 
         //then
-        verify(memberRepository, times(1)).save(any(Member.class));
+        verify(memberRepository, times(1)).saveAndFlush(any(Member.class));
     }
 
     @Test